Sympathetic dysfunction in patients with primary Sjogren's syndrome
OBJECTIVE: To investigate autonomic nervous system function in patients with primary Sjogren's syndrome (SS) and relate the findings to clinical variables. METHODS: Autonomic nervous system function was determined in 30 patients with primary SS using the finger skin blood flow test [vasoconstrictory (VAC) index], deep-breathing test [expiration/inspiration (E/I) ratio], and the tilt table (orthost
